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An Introduction to Proximal Causal Learning

2020-09-23 epidemiology Title + abstract only
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A standard assumption for causal inference from observational data is that one has measured a sufficiently rich set of covariates to ensure that within covariate strata, subjects are exchangeable across observed treatment values. Skepticism about the exchangeability assumption in observational studies is often warranted because it hinges on investigators ability to accurately measure covariates capturing all potential sources of confounding. Realistically, confounding mechanisms can rarely if ev...

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